聚氯乙烯溶胶发泡性能预测模型的建立  

Establishment of Prediction Model for Poly(vinyl)Chloride Plastisol Foaming Performance

作　　者：吉玉碧 文强[1] 钱鹏 任邵静 杨照 谭红[1,3] Yubi Ji;QiangWen;Peng Qian;Shaojing Ren;Zhao Yang;Hong Tan(School of Chemical Engineering of Guizhou Institute of Technology,Guiyang 550003,China;National Engineering Research Center for Compounding and Modification of Polymer Materials,Guiyang 550014,China;College of Science,Beijing University of Chemical Technology,Beijing 100029,China)

机构地区：[1]贵州理工学院化学工程学院,贵州贵阳550003 [2]国家复合改性聚合物材料工程技术研究中心,贵州贵阳550014 [3]北京化工大学理学院,北京100029

出　　处：《高分子材料科学与工程》2025年第2期107-115,共9页Polymer Materials Science & Engineering

基　　金：贵州理工学院高层次人才启动项目(XJGC20190953);贵州省科技计划(黔教合支撑[2023]一般295);贵州省地方公派留学项目;贵州理工学院2023年大创项目。

摘　　要：文中结合旋转流变仪和差示扫描量热仪分析结果,研究总结了填料、糊树脂和增塑剂等原料制备的聚氯乙烯(PVC)溶胶的流变温度参数和热分解温度参数间的关系,建立了评估PVC溶胶泡孔材料发泡质量的方法模型。结果表明,PVC溶胶中发泡剂的起始分解温度(T_(f)(5%))、分解峰温(T_(f))以及T_(f)(5%)与复数黏度最大值对应温度(T_(η)_(max))的差值(T_(f)(5%)-T_(η)_(max))3个因素对材料的发泡质量有显著影响。当T_(f)和T_(f)(5%)处于PVC溶胶的最佳温度区间时,T_(f)和T_(f)(5%)越高,(T_(f)(5%)-T_(η)_(max))越大,则发泡材料密度越小,发泡倍率越高。建立的T_(f),T_(f)(5%)和(T_(f)(5%)-T_(η)_(max))与发泡材料密度和发泡倍率的三元线性回归方程,在0.05显著性水平上有实用价值。Based on the test results of rotary rheometer and differential scanning calorimeter,the relationship between the rheological temperature parameters and thermal decomposition temperature parameters of poly(vinyl)chloride(PVC)plastisol prepared from fillers,paste resins and plasticizers was studied and summarized,and a method model for evaluating the foaming quality of PVC plastisol foam materials was established.The results show that the three factors of the initial decomposition temperature T_(f)(5%),the decomposition peak temperature T_(f),and the difference between the T_(f)(5%)and the temperature corresponding to the maximum complex viscosity(T_(η)_(max))(T_(f)(5%)-T_(η)_(max))have significant influence on the foaming quality of the material.When T_(f)and T_(f)(5%)are in the optimal temperature range of PVC plastisol,the higher T_(f)and T_(f)(5%)is,the larger the(T_(f)(5%)-T_(η)_(max))is,the smaller the density of the foaming material is and the higher the foaming ratio is.Established the ternary linear regression equations between the three factors of T_(f),T_(f)(5%)and(T_(f)(5%)-T_(η)_(max))and the density or foaming ratio of foaming materials,those have practical value at the level of 0.05 significance.

关 键 词：聚氯乙烯 溶胶 发泡 流变 预测模型 

分 类 号：TQ325.3[化学工程—合成树脂塑料工业]